2020-01-01 12:51:42 +01:00
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// Copyright (C) 1994-2020 Free Software Foundation, Inc.
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2007-03-18 23:35:39 +01:00
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//
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// This file is part of GCC.
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//
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// GCC is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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2009-04-09 17:00:19 +02:00
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// the Free Software Foundation; either version 3, or (at your option)
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2007-03-18 23:35:39 +01:00
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// any later version.
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// GCC is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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2009-04-09 17:00:19 +02:00
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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2007-03-18 23:35:39 +01:00
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2009-04-09 17:00:19 +02:00
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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2007-03-18 23:35:39 +01:00
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#include "tinfo.h"
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namespace __cxxabiv1 {
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__class_type_info::
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~__class_type_info ()
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{}
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bool __class_type_info::
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__do_catch (const type_info *thr_type,
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void **thr_obj,
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unsigned outer) const
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{
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if (*this == *thr_type)
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return true;
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if (outer >= 4)
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// Neither `A' nor `A *'.
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return false;
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return thr_type->__do_upcast (this, thr_obj);
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}
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bool __class_type_info::
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__do_upcast (const __class_type_info *dst_type,
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void **obj_ptr) const
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{
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__upcast_result result (__vmi_class_type_info::__flags_unknown_mask);
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__do_upcast (dst_type, *obj_ptr, result);
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if (!contained_public_p (result.part2dst))
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return false;
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*obj_ptr = const_cast <void *> (result.dst_ptr);
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return true;
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}
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__class_type_info::__sub_kind __class_type_info::
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__do_find_public_src (ptrdiff_t,
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const void *obj_ptr,
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const __class_type_info *,
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const void *src_ptr) const
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{
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if (src_ptr == obj_ptr)
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// Must be our type, as the pointers match.
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return __contained_public;
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return __not_contained;
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}
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bool __class_type_info::
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__do_dyncast (ptrdiff_t,
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__sub_kind access_path,
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const __class_type_info *dst_type,
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const void *obj_ptr,
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const __class_type_info *src_type,
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const void *src_ptr,
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__dyncast_result &__restrict result) const
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{
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if (obj_ptr == src_ptr && *this == *src_type)
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{
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// The src object we started from. Indicate how we are accessible from
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// the most derived object.
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result.whole2src = access_path;
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return false;
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}
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if (*this == *dst_type)
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{
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result.dst_ptr = obj_ptr;
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result.whole2dst = access_path;
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result.dst2src = __not_contained;
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return false;
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}
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return false;
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}
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bool __class_type_info::
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__do_upcast (const __class_type_info *dst, const void *obj,
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__upcast_result &__restrict result) const
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{
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if (*this == *dst)
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{
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result.dst_ptr = obj;
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result.base_type = nonvirtual_base_type;
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result.part2dst = __contained_public;
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return true;
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}
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return false;
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}
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}
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